[Fwd: Re: How to make USB audio adapter default on Raspberry Pi]

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-------- Forwarded Message --------
From: Ralf Mardorf <ralf.mardorf@xxxxxxxxxxxxxx>
To: alsa-user@xxxxxxxxxxxxxxxxxxxxx
Subject: Re:  How to make USB audio adapter default on
Raspberry Pi
Date: Sun, 25 Nov 2012 19:36:11 +0100

On Sun, 2012-11-25 at 13:04 -0500, David Cullen wrote:
> How do I make the USB audio adapter the default device of ALSA?
> "/etc/modprobe.d/alsa-base.conf"

I won't explain the index method too, it's obsolet, use the slot method.

An example from my configuration.

# ALSA module ordering
options snd slots=snd_hdspm,snd_ice1712,snd_ice1712

Even if I wouldn't have mounted one of my two ICE1712 cards, if I would
connect an USB device, this device would become hw:3, since hw:0, 1 and
2 a reserved.

So in your case

options snd slots=snd_usb_audio

In addition I sometimes unload what I don't need sometimes, but what I
can't blacklist, because it's needed sometimes, e.g.
modprobe -r snd_ice1712

If it's a "normal" Linux on your Raspberry it should do the job.

Hth,
Ralf



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